Pass mark 75% from twenty randomly chosen questions.
#1. An occluded front is where:
#2. Water has a ________ Specific Heat Capacity than land. (Fill in the missing space correctly.)
#3. For smog to form:
#4. The observed temperature at the surface is +16°C and at 4000 feet the temperature is +11°C. The state of the atmosphere can be described as:
#5. On a cold, clear night, ice crystals may form on a surface directly from water vapour. What is this process called?
#6. Your altimeter is set to zero on the ground, with an altimeter sub-scale reading of 1009 hPa. Before departing, you decide to set the altimeter to show your altitude. With a known airfield elevation of 330 feet AMSL, what sub-scale reading would you set your altimeter to, and what is this setting referred to?
#7. Mean sea level density in the International Standard Atmosphere (ISA) is:
#8. In the northern hemisphere, compared to the surface, the 2000 foot wind can be expected to:
#9. When a wind changes direction from Southerly to South-Westerly, it is said to have:
#10. You’re at an airfield just a few feet above sea level, and it’s a standard day (ISA). Approximately what altitude would you find a temperature of -1 degrees Celsius?
The standard lapse rate is 2 degrees for every thousand feet. ISA standard temperature is 15 degrees at sea level.
The difference between 15 and -1 is 16 degrees. Dividing this value by 2 (two degrees per thousand feet) gives you 8. Multiply that by 1,000 and you get an altitude of 8,000 feet.
#11. In the southern hemisphere, high pressure system winds circulate in which direction?
#12. Virga means:
#13. A METAR is a weather:
#14. The Geostrophic Wind flows:
#15. Select the true statement concerning isobar and windflow patterns around high and low pressure systems, as shown on synoptic charts:
#16. If flying on a hazy afternoon in Britain, in which direction will visibility be greatest?
#17. A wind whose direction has changed clockwise is said to have:
#18. In the UK, away from exposed coasts, airmass thunderstorms are most likely to occur in:
#19. The atmospheric situation where temperature increases with height is called a(n):
#20. If ice forms over the static vent of an aircraft and blocks it during the climb, the altimeter will read: